Cal. Bus. & Prof. Code § 6158.3
In addition to any disclosure required by Section 6157.2, Section 6157.3, and the Rules of Professional Conduct, the following disclosure shall appear in advertising by electronic media. Use of the following disclosure alone may not rebut any presumption created in Section 6158.1. If an advertisement in the electronic media conveys a message portraying a result in a particular case or cases, the advertisement must state, in either an oral or printed communication, either of the following disclosures: The advertisement must adequately disclose the factual and legal circumstances that justify the result portrayed in the message, including the basis for liability and the nature of injury or damage sustained, or the advertisement must state that the result portrayed in the advertisement was dependent on the facts of that case, and that the results will differ if based on different facts.
Ca. Bus. and Prof'l. Code § 6158.3